Author(s): Pereira, Pedro ; Carneiro, Júlio ; Canhoto, Paulo ; Pedro, Jorge ; Khudhur, Karwan ; Mazezo, Augusto
Date: 2025
Persistent ID: http://hdl.handle.net/10174/38889
Origin: Repositório Científico da Universidade de Évora
Subject(s): energy storage; dynamic interactions; hydrogen in porous media; reservoir heterogeneity
This study, part of the H2GeoStore R&D project, investigates underground hydrogen storage in saline aquifers as a solution for large-scale, long-term energy storage to support renewable energy systems. Using reservoir simulations of cyclic hydrogen injection and withdrawal under various conditions and reservoir heterogeneities, the research evaluates performance metrics like injectivity, productivity, and storage efficiency over a 10-year period. Preliminary findings highlight the significant influence of geological heterogeneity and the benefits of cushion gas. Ongoing work explores hydrogen’s physical interactions in porous media and future efforts will assess geochemical and geomechanical effects on caprock integrity.
